* sysdeps/unix/sysv/linux/i386/sigaction.c: New file.
* sysdeps/unix/sysv/linux/i386/xstat.S: Don't use JUMPTARGET macro
on syscall_error. For PIC, it is a local label;
for non-PIC, JUMPTARGET expands to the unadorned name anyway.
* sysdeps/unix/sysv/linux/i386/xmknod.S: Likewise.
* sysdeps/unix/sysv/linux/i386/syscall.S: Likewise.
* sysdeps/unix/sysv/linux/i386/socket.S: Likewise.
* sysdeps/unix/sysv/linux/i386/sbrk.S: Likewise.
* sysdeps/unix/sysv/linux/i386/mmap.S: Likewise.
* sysdeps/unix/sysv/linux/i386/brk.S: Likewise.
+Thu Oct 26 00:11:13 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * sysdeps/unix/sysv/linux/i386/sigaction.c: New file.
+
+ * sysdeps/unix/sysv/linux/i386/xstat.S: Don't use JUMPTARGET macro
+ on syscall_error. For PIC, it is a local label;
+ for non-PIC, JUMPTARGET expands to the unadorned name anyway.
+ * sysdeps/unix/sysv/linux/i386/xmknod.S: Likewise.
+ * sysdeps/unix/sysv/linux/i386/syscall.S: Likewise.
+ * sysdeps/unix/sysv/linux/i386/socket.S: Likewise.
+ * sysdeps/unix/sysv/linux/i386/sbrk.S: Likewise.
+ * sysdeps/unix/sysv/linux/i386/mmap.S: Likewise.
+ * sysdeps/unix/sysv/linux/i386/brk.S: Likewise.
+
Thu Oct 26 03:01:22 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* sysdeps/unix/sysv/linux/syscall.h: Strip list of syscalls in
dup2 lstat mkdir rmdir readlink symlink rename swapon \
access select getgroups setgroups \
getitimer setitimer \
- getdomainname/getdomain=bsd/bsd4.4 \
- setdomainname/setdomain=bsd/bsd4.4 \
+ getdomainname:getdomain=bsd/bsd4.4 \
+ setdomainname:setdomain=bsd/bsd4.4 \
fchdir=bsd/bsd4.4 \
profil=bsd readv=bsd writev=bsd \
getpriority setpriority \
unix_srcdir=common
eval "unix_syscall=`echo $unix_function | \
sed -e 's@=\(.*\)$@ unix_srcdir=\1@' \
- -e 's@/\(^=/*\)$@ unix_srcname=\1@'`"
+ -e 's@:\(.*\)@ unix_srcname=\1@'`"
test -z "$unix_srcname" && unix_srcname=$unix_syscall
unix_implementor=none
movl %edx, %ebx
cmpl 4(%esp), %eax
- jne JUMPTARGET(syscall_error)
+ jne syscall_error
#ifdef PIC
/* Standard PIC nonsense to store into `__curbrk' through the GOT. */
/* %eax is < 0 if there was an error. */
testl %eax, %eax
- jl JUMPTARGET(syscall_error)
+ jl syscall_error
/* Successful; return the syscall's value. */
ret
.align 16
.L3:
movl %edx, %ebx
- jmp JUMPTARGET(syscall_error)
+ jmp syscall_error
weak_alias (__sbrk, sbrk)
--- /dev/null
+/* POSIX.1 `sigaction' call for Linux/i386.
+Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <sysdep.h>
+#include <errno.h>
+#include <stddef.h>
+#include <signal.h>
+
+
+/* If ACT is not NULL, change the action for SIG to *ACT.
+ If OACT is not NULL, put the old action for SIG in *OACT. */
+int
+__sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
+{
+ struct sigaction newact;
+ int result;
+
+ if (new)
+ {
+ newact = *new;
+ new = &newact;
+ new->sa_restorer = ((new->sa_flags & SA_NOMASK)
+ ? &&restore_nomask : &&restore);
+ }
+
+ asm volatile ("pushl %%ebx\n"
+ "movl %1, %%ebx\n"
+ "int $0x80\n"
+ "popl %%ebx"
+ : "=a" (result)
+ : "0" (SYS_ify (sigaction)), "g" (sig), "c" (new), "d" (old));
+
+ if (result < 0)
+ {
+ errno = -result;
+ return -1;
+ }
+ return 0;
+
+ restore:
+ asm (
+#ifdef PIC
+ " pushl %ebx\n"
+ " call 0f\n"
+ "0: popl %ebx\n"
+ " addl $_GLOBAL_OFFSET_TABLE_+[.-0b],%ebx\n"
+ " addl $8, %%esp\n"
+ " call __sigsetmask@PLT\n"
+ " addl $8, %%esp\n"
+ " popl %ebx\n"
+#else
+ " addl $4, %%esp\n"
+ " call __sigsetmask\n"
+ " addl $4, %%esp\n"
+#endif
+ "popl %eax\n"
+ "popl %ecx\n"
+ "popl %edx\n"
+ "popf\n"
+ "ret");
+ restore_nomask:
+ asm ("addl $4, %esp\n"
+ "popl %eax\n"
+ "popl %ecx\n"
+ "popl %edx\n"
+ "popf\n"
+ "ret");
+}
+
+weak_alias (__sigaction, sigaction)
/* %eax is < 0 if there was an error. */
testl %eax, %eax
- jl JUMPTARGET(syscall_error)
+ jl syscall_error
/* Successful; return the syscall's value. */
ret
int $0x80 /* Do the system call. */
POPARGS_5 /* Restore register contents. */
testl %eax, %eax /* Check %eax for error. */
- jl JUMPTARGET(syscall_error) /* Jump to error handler if negative. */
+ jl syscall_error /* Jump to error handler if negative. */
ret /* Return to caller. */
jmp *%ecx /* Return success. */
.L2: pushl %ecx
- jmp JUMPTARGET(syscall_error)
+ jmp syscall_error
/* Yes, then branch to error handling. */
/* For compatibility with Linux libc. */
jmp *%ecx /* Return success. */
.L2: pushl %ecx
- jmp JUMPTARGET(syscall_error)
+ jmp syscall_error
/* Yes, then branch to error handling. */
/* For compatibility with Linux libc. */
projects / platform / upstream / glibc.git / commitdiff